Read e-book online Mixed-Mode Crack Behavior (ASTM Special Technical PDF

By Keith John Miller and David L. McDowell, editors

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Additional resources for Mixed-Mode Crack Behavior (ASTM Special Technical Publication, 1359)

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13-21. [38] Dalle Donne, C. , "Biaxial Load Effects on Plane Stress J-Aa and ~5-z~a Curves," Proceedings of the ]Oth European Conference on Fracture ECF 10, Vol. 2, K. -H. Schwalbe and C. , Engineering Materials Advisory Services, EMAS, 1994, pp. 891-900. [39] Schwalbe, K. , Kim, Y. , "EFAM ETM 97-the ETM Method for Assessing the Significance of Crack-Like Defects in Engineering Structures, comprising the versions ETM 97/1 and ETM 97/2," GKSS-Research Center, Germany, GKSS 98/E/6, 1998. [40] Link, R.

4 of Miller's review [47]. 4 oo I lo ~ . s . 0 3'0 cmodv [ram] 4'0 so FIG. 11--Prediction of the load-displacement behavior of a crucoeorm steel specimen under near Mode I mixed-mode loading. The data points correspond to two experiments. 2t iv,y (~v~ ~ -= -- ~'="r"rn ' ........ 5 FIG. 12--Comparison of the ETM predietion with two AI2024-T3 experiments displaying tensile crack growth. The broken line corresponds to the fully plastic ETM prediction (solid line) shifted to the plastic limit load that was evaluated with strain gages in the ligament.

O (El o ~ or ~ -~- r Aa[mm] ~ 9 r ~=45o . r ~ 3 FIG. 4--J-integral versus stable crack growth of the C(TS) steel specimens compared to the Mode I J-R-curves of C(T) and M(T) specimens. DALLE DONNE ON VECTOR APPROACH TO FRACTURE 27 striking feature of the J-integral crack resistance curves is that the R-curves decrease with increasing Mode lI loading components. For fixed 2~a, the Mode II fracture resistance in terms of a J-R-curve was approximately only one half of the Mode I J-Aa-curve of a C(T) specimen.

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